Initial commit

Co-authored-by: Copilot <copilot@github.com>

astro.config.mjs

@@ -0,0 +1,10 @@
+import { defineConfig } from 'astro/config';
+
+export default defineConfig({
+  output: 'static',
+  trailingSlash: 'always',
+  site: process.env.PUBLIC_SITE_URL ?? 'https://swansea-airport.wales',
+  server: {
+    allowedHosts: ['docker', 'localhost'],
+  },
+});